package day06;
import java.util.Arrays;
public class ArrayDemo {
    public static void main(String[] args) {
        //数组的扩容
        int[] a={10,20,30,40,50};
        a=Arrays.copyOf(a,a.length-1);
        for(int i=0;i<a.length;i++){
        System.out.println(a[i]);
        }






        /*
        int[] a={10,20,30,40,50};
        int[] b=new int[6];
        System.arraycopy(a,1,b,0,4);
        //a:源数组
        //1:源数组的起始下标
        //b:目标数组
        //0:目标数组的起始下标
        //4:要复制的元素的个数
        for(int i=0;i<b.length;i++){
            System.out.println(b[i]);
        }

         */
    }
}
